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| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  | |  |  | | |  | |  | | |
| Partly Sunny | Chance of T-Storm | Partly Sunny | Partly Cloudy | Sunny | Partly Cloudy | Partly Sunny | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C |
| POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1200 PM EDT Wed Sep 09 2026 
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Issued: 715 AM EDT Wed Sep 9 2026
Key Messages
1) Heat and humidity will peak today.
2) Showers and scattered strong to potentially severe thunderstorms, with the threat for localized gusty to damaging winds for late today and early tonight, mainly across the NW third of PA.
Discussion
... KEY MESSAGE 1: Heat and humidity will peak today.
Increasingly southwesterly flow at the surface and aloft will carry warm and humid air into the region today, well in advance of a cold front moving southeast across the Upper Great Lakes.
A graduall...